Horseshoe-punching machine



Jan. 2 0, I925.

J. BROCK HORSESHQE PUNCHING MACHINE Filed Nov. 12, 1919 4 SheetsSheet 1 Q -Wi; 7 3 7 Jan. 250. 1925.

J. BROCK HORSESHOE PUNCHING MACHINE Filed Nov. 12, 1919 4 Sheets-Sheet 2 W a 7K2 j 20, @925. 1,523,748 J. BROOK HORSESHOE PUNCHING MACHINE Filed Nov. 12, "1919," 4 Sheets-Sheet" 3 J BROCK HORSESHOE PUNCHING MACHINE Filed Nov. 12, 1919 v 4 Sheets-Sheet 4 Patented Jan. 2 925.

, T W W! W i F 7""3 3 Ell t JOSEPH BROOK, OF ERIE, PENNSYLVANIA, ASSIGNGB- OF FIVE FER CENT TO JOHN J.

GRANT, OF ERIE.

PENNSYLVANIA.

Application filed November 12, 1919.

To (/N "71 7107)? it may concern:

ie it known that T, JosnrH Bnoon. a citi'lzen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented new and use ful Improvements in Horseshoe-Punching Machines, of which the following is a specification.

his invention is designed to punch horseshoes, the punching being done with group series of punches so that all the holes are punched at once.

The invention is illustrated in the accompanying drawings as follows Fig. 1 shows a plan View of the machine.

Fig. 2 a section of the feed-guide with the shears.

Fig. 3 a central cross section of the machine on the line 3-3 in Fig. 4.

Fig. 4 a section on the line 44 in Fig. 3.

Fig. 5 is an elevation of the machine from the right of Fig. 3.

Fig. 6 is an enlarged section of the punches and adjacent parts corresponding to the section in Fig. 4.

1 marks the base of the machine, 2 the frame extending upwardly from the base, and 3 the table or top of the machine.

The uprights are provided with guide ways 4 in which operate the U-shaped ends of a plunger 5 The plunger is provided with ournal pins 6 from which the connecting rods '7 extend to cranks 8, the cranks being carried by a shaft 9. The shaft 9 is journaled in bearings 10. A gear 11 is fixed on the shaft 9 and is driven by a gear 12 carried by a shaft 13. It will be readily seen that as the shaft 9 is rotated the plunger 5 is reciprocated in the guides.

A. feed-guide 14 is arranged on the table and a bar 15 is carried by this guide. It is carried forward by a pawl 16 which is adapted to drop into notches 17 formed in the bar as the bar is formed. The pawl 16 is carried by a rod 1.8, the rod being mounted on a guide 19. A connecting rod 20 eX- tends from the rod 18 to a crank 21 on the gear'll. It will be readily seen that the pawl is reciprocated with each revolution of the gear and this forward movement of the bar is timed with the plunger so that the forward movement takes place with the plunger in an elevated position and a backward movement takes place when the plunger is moved downwardly. A dog 22 Serial No. 387,382.

engages the side of the bar, the dog being yieldingly pressed against the bar by a spring 22. The dog is so formed as to pre vent a return movement of the bar.

A clamping plate 23 is slidingly mounted in guides 25 arranged on the table 3. A shear blade 26 is carried by the plunger and operates in connection with a shear blade 27 so as to cut the bar and form the blank 15. The blank as it is sheared is deposited on the clamp plate 23.

The clamping plate is reciprocated through the following mechanism z-Ears 28 extend downwardly from the clamping plate. A. rock lever 30 extends between the ears and is pivotally connected therewith by a pin 29. The lever is journaled on a rod carried by a bracket 31 extending from the lower side of the table. The lower end of the lever 30 extends into a cam slot- 33 in a cam on the shaft 9. The cam slot 33 is so formed as to time the movement of the clam aing plate to perform the functions hereinafter described. A die 35 is mounted in a plate 36 carried by the table and a clamping block 37 opposes the clamping plate 23 in securing the blank 15* in proper position on the die. The bar has the depressions 38 in which the punched holes are arranged. the depressions being for the purpose of receiving the nail heads on the shoe and the clamping mechanism positions the bar so as to bring these depressions in alinc ment with the openings of the die 35.

Punches 39 are carried in sliding blocks 40 mounted in slots 41 in the plunger, the plunger being provided with guide ways 42 at the sides of the slots 41 for receiving the blocks 40. The upper ends of the punches are screw-threaded and are secured in the block by being screwed therein. The upper ends of the punches are slotted at 44 and locking pins 45 are arranged in these slots thereby locking the punches in adjustment. The pin 45 is secured to the block by screws 46.

The punches extend through the guide blocks 47. these guide bloc-ksbeing similar in length to the blocks 40 and having a series of openings through which the punches extend. Plates 48 are secured by means of studs 49 on the ends of the guide blocks 47 and the dies These plates extend up against the ends of the punch blocks 40 and consequently aline the dies, guide blocks and punch means alinement; means for Separating the two series; mechanism for advancing a blank with the two series separated; and devices for bringing the two series together after the blank is in position under the punches, said devices having stops contacting the ends of the blank to position the punches and said devices comprising means for varying the position of the punches relatively to the ends of the blank as the length of the blank varies.

In a horse-shoe punching machine. the combination of two series of punches; two punch-bloc s czrrying said punches; plungers for said punch-blocks in which the blocks may move relatively to each other; a spring for drawing the blocks toward each other: means for feeding a blank; and devices carried by the blocks gauging the punches relatively to the ends of the blank.

6. In a horse-shoe punching machine, the combination of two series of punches; two punch-blocks carrying said punches: plungers for said punch-blocks in which. the blocks may move relatively to each other: a. spring for drawing the blocks toward each other; means for feeding a blank; and devices carried by the blocks gauging the punches relatively to the ends of the blank, said devices permitting the ends of the blank to act as stops for the blocks against the action of the spring.

7 In a horse-shoe punching machine, the combination of two series of punches; blocks carrying said punches; a plunger in which the blocks are mounted, said plunger having a relative movement in alinement with the punches toward and from each other; de vices yieldingly holding the blocks together; and means for forcibly separating the blocks to permit the insertion of a blank, the devices positioning the blocks relatively tc the ends of the blank.

8. In a horse-shoe punching machine, the combination of two series of punches; blocks carrying said punches; a plunger in which the blocks are mounted, said plunger having a relative movement in alinement with the punches toward and from each other; devices yieldingly holding the blocks together; and means for forcibly separating the blocks to permit the insertion of a blank, the devices positioning the blocks relatively tothe ends of the blank and varying the position of the blocks relatively tothe ends of the blank with a variation in the length of the blank.

9. In a horse-shoe punching machine, the combination of two series of punches; blocks carrying said punches: a plunger in which. the blocks are mounted, said plunger having a relative movement in alinement with the punches toward and from each other; de vices yieldingly holding the blocks together; and means carried by the plunger for forcibly separating the blocks to per-- mit the insertion of a blank, the devices positioning the blank and block relatively to each other.

10. In a horse-shoe punching machine, the combination of two series of punches arranged in alinement; blocks carrying said punches; a plunger in which the blocks are mounted, said blocks being movable relatively to each other in the plunger; cams on the blocks; dies; guide plates extending from the dies and engaging the blocks; cams on the guide plates; a cam on the plunger adapted to engage the cam on the guide plates and separate the blocks; a spring tending to draw the blocks together; and means acting on the ends of a blank as the plunger descends for positioning the blank endwise relatively to the punches.

11. In a horse-shoe punching machine. the combination of two series of punches; blocks carrying said punches; springs tend ing to draw said blocks toward each other; means for separating the blocks; swinging arms for engaging the ends of a blank; and. link connections between intermediate parts of the arms, the opposite ends of the links moving with the blocks whereby a differential adjustment is given to the punches relatively to the ends of the blank.

12. In a horse-shoe punching machine, the combination of two series of punches arranged in alinement; blocks carrying said punches; a spring tending to bring said blocks together; means for feeding a blank laterally into position under the punches; guide stops for the blocks adapted to engage the ends of the blank to position the blocks; and means for separating the blocks to permit the insertion of a blank.

13. In a horse-shoe punching machine. the combination of two series of punches in alinement; means for yieldingly; drawing them together: means for separating them to permit the insertion of a blank; devices for feeding the blank laterally into position under the punches; apparatus for gauging the punches relatively to the blank by engagement with the ends of the blank; and means for feeding a blank longitudinally to said devices.

14. In a horse-shoe punching machine, the combination of two series of punches in alinement; means for yieldingly drawing them together; means for separating them to permit the insertion of a blank; devices for feeding the blank laterally into position under the punches; apparatus for gauging the punches relatively to the blank by engagement with. the ends of the blank; and means for feeding a blank longitudinally to said devices comprising a shear severing the blank.

15. In a horse-shoe punching machine, the combination of two series of punches in alinemen't; "111621118 for yieldingly drawing them together; means for separating them to permit the insertion of a blank; devices for feeding the blank laterally into position under the punches; apparatus for gauging the punches relatively to the blank by engagement With the ends of the blank; and means for feeding a blank longitudinally to said devices and for severing the blank in position on the devices.

16. In a horseshoe punching machine the combination of two series of punches; means for feeding a blankto position under the punches laterally; a clamp comprising a clamping block for engaging a blank While being punched; and means for actuating the block to discharge the blank.

17. In a horseshoe punching machine, the combination of two series of punches in alinement; a clamping plate for moving a blank into position under thepunches and -for clamping the same; a clamping block opposing.,the clamping plate; means for movingthe clamping plate; andmeans for actuating the blockto'discharge the blank.

v18. Ina horse-shoe punching machine, the [combination-of two series of punches in alinenient; a clamping plate" for moving a combination of two series of punches in alinement; means for adjusting said punches relatively to each other in the line of the punches; means for feeding a blankinto position under the punches; and means for adjusting the blank endivise relatively to the punches. v V

20. In a horse shoe punching machine the combination of two series of punchesin alinement means foradjusting saidpunches relatively to each other in the line' of the 1 punches; means for feeding ablank into position under the punches; and means for ad;

justing the blank endWise relatively to the punches and as the punches are adjusted.

In testimony whereof I have hereunto set my hand. I

Josnrn'nnoo e 

